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问题 did sightseeing是什么用法

Kristin Diehl conducted a series of experiments on photo-taking to find out whether people enjoyed it when they did sightseeing.过去式did后面为什么用ing形式（有did doing句型吗）？

问题 which引导的这个从句是什么

You commit to making time for me as a student, which without your guidance, I would not be here today. 想请问下，这个which引导的是什么从句呢

问题 when从句的时态问题

—Can I go to Beijing for my holiday, Dad?—You can when you _______ a bit older.A. will getB. getD. gotC.are getting为什么答案是选B而不是选A（本人初学者，不要太深奥）

问题 句子成分

...t-eye,but in a major sleep study almost 80 percent of respondents admitted to not getting their prescribed amount of nightly rest. 请问老师这个句子成分如何划分，句子开头为何会有think /are getting两个谓语动词呢？ 还有一个问题，两个getting为什么要用ing形...

问题 介词短语作宾补转换成被动句

we discovered him above his company.我们发现他高人一等。改成被动句He was discovered to be above his company.为什么要把作宾补的介词短语变成不定式？

问题 those可以修饰形容词吗

Did they follow those least willing to change their minds?以上摘自2023年高考英语新全国卷1阅读理解D。请问这个 willing 后面怎么没有名词呢？难道 those 可以修饰形容词吗？

问题 dot you up是什么意思？

Dr.Eldridge will be in in a minute to dot you up.dot you up是什么意思？dot up是一个词组吗？是什么意思？

问题 while done之间的省略问题

While regarded as an impossibility, many people still want to carry out this plan. 老师好，我们知道while后可以省略“主语+doing”,请问老师，这个句子所包含的while用法正确吗？

问题 for just words是什么意思

I want speak to my Chinese friends in Chinese for just words.下面句子中的just words是什么意思？just这种用法给几个例子。

问题 如何理解这里的up用法

his eyes fell on a small crab that stood before him with its claws up as if it were listening to what he said.这里的its claws是名词，后面的up怎么理解？

问题 为什么该句用will ever

原句是 You will ever learn how to drive？翻译是你会学开车吗？为什么是用will ever表达？

问题 为什么这里不能用that引导定语从句

We should learn from those who are always ready to help others.

问题 not even的完整句子是什么

You are not supposed to eat anything with your hands except bread, not even fruit.这里的not even fruit的完整句子是什么呢？

问题 应该否定前移的情况也可以不前移吗

人教版8年级上册101页有一句话:I think kids won't go to school.此处为什么不否定前移？

问题 请教一个it takes句型

我看词典里it takes句型的句子，单词takes后面一般是被花费的钱、物资或时间等，但这句话里的to send bitcoins像是消耗的主体，不是一般句型里的被消耗的客体。为什么这里会不一样呢？请帮助解释。